Problem 108: Diophantine Reciprocals I

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In the following equation x, y, and n are positive integers.

1/x + 1/y = 1/n

For n = 4 there are exactly three distinct solutions:

1/5 + 1/20 = 1/4

1/6 + 1/12 = 1/4

1/8 + 1/8 = 1/4

What is the least value of n for which the number of distinct solutions exceeds one-thousand?

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